US926897A - Steel underframe for railway-cars. - Google Patents

Description

G. B. RoBBINs & W. E. SHARP. STEEL UNDERFRAME FOR lRAILWAY GARS.

APPLICATION FILED MAY 29, 1908.

Patented July 6, 1909.

. EINS and WILLIAM E. SHARP,'both citizens connect the abutting ends of the draft-arms .and center sills on the opposite sides thereof `ous anchorage for the draft-gear run-ning UNTTED 4sTATEs PATENT oiEEroE.

GEORGE B. ROBBINS, OF HINSDALE` AND WILLIAM E. SHARP, OFCHIUAGO, ILLINOIS.

STEEL UNDERFRAME Fon RAILWAY-CARS.

Specification of Letters Patent.

' Patented Jniye, 1909.

Application filed May 29, `1908. Serial No. 435,808.

To all whom 'it may concern:

Be it known that we, GEORGE B. ROB- oi the lnited States, residing, respectively, at Hinsdale and Chicago,l in the county of Cook and State of Illinois, have invented. certain Anew and useful Improvements in Steel Underframes for Railway-Cars, of which the following is a specification.

This invention relates to, improvements in steel underframes for railway'cars, and has for its main object to provide an improved construction in which the steel centeresills and draft-armson opposite sides of the bod T-bolster are securelyV joined through the atter, so as to form a continufrom end to end of the carto withstand bothv buliing and pulling strains.

In carrying vout our invention we employ a body-bolster, preferably made continuous from side to side of the underframe, and

through the agency of links passing through the body-bolster on opposite sides of the draft-ar1ns and center-sills, said links being strongly secured at their ends to the draftarms and center-sills. In the particular embodiment of the invention herein shown, these links are secured to the draft-arms and. center-sills through the agency .of keys passed transversely through the draft-arms and links on one side of then bolster and through the center-sills and links on the opposite side of the bolster, in such a manner as to transmit through said. links both draft and bufling strains in either direction. We also preferably employ in addition to the parts specified, hollow filler castings interposed between and riveted to the two draftarms and the two center-sills and abutting against the body-bolster, which castings, in the construction herein shown, are transversely apertured for the passage of the said. keys.

The invention will be readily understood when considered in connection with the accompanying tlrawings,showing a practical mechanical embodiment thereof, in which Figure 1 is 'a top plan View of the complete structure. Fig. 2 is a longitudinal verticalsection on the line 2-2 of Fig. 1.

Fig. 3 isan end view of Fig. 1. 4

Referring to the drawings, 5 indicates a body-bolster herein shown as continuous from side to side of the car.

6 designates each of a pair of center-sills shown as of outwardly facing channel form, the ends of which abut against the side of the body-bolster either directly as shown,

'or through the intervention of one or more filler castings, as shown in our pending ap-A plication on underframes'forrailway cars, Serial No. 409,458, filed January 6, 1908. 7 designates each of a air of steel draftarms, also shown as o channel form, the inner ends of which either outwardly facing v directly or indirectly abut against the outer side of the bolster 5.

8 designates each of a pair of links that are' passed through the body-bolster 5 on opposite sides of the draft-arms and centersills, respectively, and, near their ends are apertured to receive the ends of keys 9 that are passed through suitable apertures in the draft-arms and center-sills, cotters l() or other suitable fastening devices being employed to retain the links 8 in engagement with the keys 9. l

` To increase the rigidity and strength of the structure we also, as herein shown, preferably employ hollow filler castings 11 and 12, the former of which is interposed between the two draft-arms 7, andthe latter between the `two 4center-sills 6, said filler castings at their inner or closedends. abutting against the sides of the bolster. These filler castings are strongly riveted to the draft-arms and center-sills, respectively, as indicated at 13 and 14.

Overlying the body-bolsteil .and inner ends of the draft-arms and 'center-sills are top and bottom gusset- plates 15 and 16, respectively, these gusset-plates being riveted'to the bolster as indicated at 17 and to the upper and lower sides of the filler castings, as indicated at 18. i

It will be seen that by reason of theforegoing construction both the draft and buiiing strains imparted to the draft-arms 7 are transmitted directlyv to the longitudinal center-sills 6 through the 1inks-8 and keys 9, thus producing a practically continuous anchorage for the draft and bufiing gear from strains on the rivets by which the top and bottom gusset-plates '15 and 16 are secured 'to the bolster and to the draft-arms and center-sills.

It willbe evident to those skilled in the art that the broad principle of the invention is capable of embodiment in other speciiic forms of connecting devices between the draft-arms and center-sills, and in a companion application filed concurrently herewith, Serial No. 485,809, we have disclosed and claimed another such means of connecsite sides of said bod tion. Hence, we do not, in this application, limit ourselves to the particular mechanical embodiment of the connecting means herein,l

disclosed, except to the extent clearly indicated in specific claims.

1. In an underframe construction, the combination with a bodybolster vand draft arms and center sills abutting against oppobolster, of links extendin through said ody bolster on op o- 4site si es o f said draft-arms and centersi ls,

and means connecting the opposite ends 'of said-links to said draft arms and center sills,

Substantially as described.

2. In an underframe construction, the

` combination with aibody bolster and draft arms andcenter sills abutting against oppo:

`site sides of said body bolster, of links extending through said body bolster on opposite sides of said draft arms and center s1 ls and keys passed through said draft arms and lplates overlying an center sills and the opposite ends of said 3 links, substantially as described. y

3. `In an underframe construction, the combination with a body bolster and draft arms and center sills abutting against opposite sides of said body bolster, of Iller castings between and riveted to said draft-'arms and center-sills, respectively, links extending through said body-bolster on o posite sides of said 'draft-arms and center-sills, and

keys passed through said draft-arms and cen- 4' through said body-bolster on opposite sides 5l of said draft-arms and center-sills, keys passed through said draft-arms and centersills and their interposed. filler castings, said keys also extending through and connecting said links, and/up er and lower gusset- 6 riveted to said bolster and filler castings, substantially as described. A

GEORGE B. ROBBINS. WILLIAM E. SHARP.

Witnesses: I

FRANCIS J. MoAssEY, I WILLIAM B'CARPENTER.

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